In recent years, continuous vacuum freeze dryers have been explored and used at home and abroad. The continuous equipment is characterized by the production of a single product with a large output and sufficient raw materials, especially for the production of pulp and granular products. Continuous equipment is easy to implement automatic control, simplifying manual operation and management, and its main disadvantage is high cost....

When choosing a laboratory freeze dryer model, we usually consider focusing on the following parameters:...

The whole process of freeze-drying is actually the simultaneous process of heat transfer and mass transfer (steam). The heat and mass transfer rate affect the drying rate, which affects the entire freeze-drying cycle. All the factors affecting heat and mass transfer will affect. Drying rate. ...

The small freeze dryer (laboratory freeze dryer) can be divided into two types: bell-type freeze dryer and in-situ freeze dryer....

The freeze-dried dried figs are obtained by freeze-drying and dehydrating in a vacuum low temperature environment by a freeze dryer apparatus, and are characterized in that the appearance quality and nutritional value of the raw materials are maintained. It can maintain the appearance quality and nutritional value of the raw material fresh fruit to the utmost extent. The product has good rehydration performance, light weight, no additives and is resistant to preservation....